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0686
Feed-Forward Coefficient Overflow
Fanuc · Alpha i Series Servo Amplifier
Was bedeutet 0686 ?
This invalid parameter setting alarm indicates that the internal calculation value of the feed-forward coefficient has overflowed. This suggests the coefficient setting is too high or requires a different calculation method to accommodate the value.
Häufige Ursachen
- Feed-forward coefficient calculation has overflowed.
- Issues in predicting motor response to torque commands.
- Incorrect feed-forward gain settings (e.g., P04-16).
- Rapid changes in load torque.
Reparaturschritte & Checkliste
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- 1
Utilize the position gain expansion function to handle the feed-forward coefficient calculation.
Verifizierte technische Daten. Zuletzt aktualisiert: March 2026
Verwandte Fehlercodes
Quelle: Fanuc Alpha i Series Servo Amplifier